A vulnerability in the `_create_model_version()` handler of `mlflow/server/handlers.py` in mlflow/mlflow versions 3.9.0 and earlier allows an unauthenticated remote attacker to read arbitrary files from the server's filesystem. The issue arises when a `CreateModelVersion` request includes the tag `mlflow.prompt.is_prompt`, which bypasses source path validation. This enables an attacker to store an arbitrary local filesystem path as the model version source. The `get_model_version_artifact_handler()` function later uses this source to serve files without verifying the model version's prompt status, leading to a complete confidentiality compromise. This issue is fixed in version 3.10.0.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-42h5-h8qh-vv9v MLflow allows an unauthenticated remote attacker to read arbitrary files from the server's filesystem
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 12 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Mlflow
Mlflow mlflow/mlflow
Vendors & Products Mlflow
Mlflow mlflow/mlflow

Mon, 11 May 2026 19:30:00 +0000

Type Values Removed Values Added
Description A vulnerability in the `_create_model_version()` handler of `mlflow/server/handlers.py` in mlflow/mlflow versions 3.9.0 and earlier allows an unauthenticated remote attacker to read arbitrary files from the server's filesystem. The issue arises when a `CreateModelVersion` request includes the tag `mlflow.prompt.is_prompt`, which bypasses source path validation. This enables an attacker to store an arbitrary local filesystem path as the model version source. The `get_model_version_artifact_handler()` function later uses this source to serve files without verifying the model version's prompt status, leading to a complete confidentiality compromise. This issue is fixed in version 3.10.0.
Title Arbitrary File Read via Prompt Tag Source Validation Bypass in mlflow/mlflow
Weaknesses CWE-22
References
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2026-05-12T13:33:20.949Z

Reserved: 2026-02-17T06:46:27.686Z

Link: CVE-2026-2614

cve-icon Vulnrichment

Updated: 2026-05-12T13:33:09.196Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-11T20:25:41.423

Modified: 2026-05-13T15:53:49.087

Link: CVE-2026-2614

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-11T21:30:26Z

Weaknesses